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The following table shows the calculations and quantities for lining the channel in the main diversion. <br />Ses � Taa Csas Sef. ava� 7-4e o OftA ariJ P �� / <br />Segment # <br />Riprap <br />D50 (ft) <br />Avg. Riprap <br />Thickness of <br />Placement <br />(ft) <br />Segment <br />Length <br />(ft) <br />Perimeter <br />of Riprap <br />Volume <br />in CY <br />Filter <br />Material <br />D50 (ft) <br />Avg. Filter <br />Material <br />Thickness <br />(ft) <br />Filter Material <br />Volume in CY <br />1 <br />1.75 <br />2.1 <br />333 <br />24 <br />621.60 <br />0.25 <br />0.35 <br />103.60 <br />2 <br />1.75 <br />2.1 <br />436 <br />24 <br />813.87 <br />0.25 <br />0.35 <br />135.64 <br />3 <br />1.75 <br />2.2 <br />277 <br />24 <br />541.69 <br />0.25 <br />0.35 <br />86.18 <br />4 <br />None <br />DNA <br />0.00 <br />DNA <br />DNA <br />0.00 <br />5 <br />2.50 <br />3.0 <br />184 <br />24 <br />490.67 <br />0.25 <br />0.35 <br />57.24 <br />6 <br />1.00 <br />1.5 <br />648 <br />24 <br />864.00 <br />0.25 <br />0.35 <br />201.60 <br />Upstream 1 <br />1.50 <br />2.0 <br />150 <br />24 <br />266.67 <br />None <br />Upstream 2 <br />1.50 <br />2.0 <br />350 <br />24 <br />622.22 <br />None <br />Total <br />4220.71 <br />584.27 <br />As described in the Hydrology section, the two additional areas to be lined upstream from the main diversion are shown on the Final Topography Map. These <br />areas are 150 feet long and 350 feet long respectively. A layer averaging 2.0 feet thickness of D50 riprap of 1.5 feet will be placed in a channel width of 14 feet. <br />No underlying filter will be employed in these areas since the existing material is rocky. The approximate lengths of the two upstream lined areas are 150 feet and <br />350 feet. <br />TR09, TR11 (v1.0) 5-10C Revised 3/98, 8/02 <br />